000 00530nam a2200205Ia 4500
008 220516s9999 xx 000 0 und d
020 _a9788120338944
041 _aeng
082 _a628
_bRAN/E
100 _aRana, S.V.S.
245 0 _aEssentials of ecology and environmental science
_c / by S.V.S. Rana
250 _a4th ed.
260 _aNew Delhi:
_bPHI Learning Pvt.Ltd.,
_c2009.
300 _axv, 568p.
650 _aEcology
650 _aEngineering
650 _aEvolution
650 _aHydrosphere
942 _cBK
999 _c2739
_d2739